Genieridium, Vaz-De-Mello, 2008

Vaz-De-Mello, Fernando Z., 2008, Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus, Zootaxa 1955, pp. 1-75 : 27-28

Key to species of Genieridium

1. Eyes hidden dorsally (Fig. 64). Central Colombia......... 6.5. G. medinae (Gill & Vaz-de-Mello, 2004)

-. Eyes small but visible dorsally ............................................................................................................. 2

2(1). Clypeal teeth lacking (Figs. 57, 68) ...................................................................................................... 3

-. Two clypeal teeth present...................................................................................................................... 4

3(2). Elytral striae without evident punctures. Venezuela.......................... 6.2. G. bordoni ( Martínez, 1992)

-. Elytral striae with ocellated punctures. Southern Brazil..................... 6.6. G. paranense ( Arrow, 1932)

4(2). Clypeal teeth very acute, sides almost parallel in the apical part (Figs. 60, 70) .................................... 5

-. Clypeal teeth obtuse, short, and equilateral (Figs. 55, 62) .................................................................... 6

5(4). Clypeal teeth arising from below clypeal margin (Fig. 60). Central Brazil, Northern Argentina, Paraguay and Bolivia.................................................................................... 6.3. G. cryptops ( Arrow, 1913)

-. Clypeal teeth at same plane as clypeal margin (Fig. 70). Southeastern Brazil........................................ .......................................................................... 6.7. G. zanunciorum ( Vaz-de-Mello & Canhedo, 1998)

6(4). Elytral striae straight, without punctures. Central Brazil and Paraguay................................................. ............................................................................................................... 6.1. G. bidens ( Balthasar, 1938)

-. Elytral striae marked by inconspicuous punctures that make striae appear sinuated. Northeastern and Central Brazil....................................................... 6.4. G. margareteae ( Génier & Vaz-de-Mello, 2002)